Rhombic Grids for Coherent Plane-Wave Compounding

Simple MATLAB implementation of the rhombic grid [1] for coherent plane-wave compounding.

⚙️ Getting Started

1. Clone the repository or download the release to your local hard drive.

git clone https://github.com/mschiffn/rhombic_grids

2. Add the repository to your MATLAB path using

addpath( genpath( './rhombic_grids' ) )

3. Run the script example.m

Folder Structure

The repository has the following structure:

.
├── +auxiliary      # auxiliary functions (e.g., dimension and size check)
├── +illustration   # illustration functions (e.g., logarithmic compression)
├── +windows        # classes for various window functions (e.g., boxcar, Hann, Tukey)
├── das_pw.m        # delay-and-sum (DAS) algorithm for arbitrary grids
├── data_RF.mat     # measurement data from tissue phantom
├── example.m       # main script
├── LICENSE         # license file
└── README.md       # this readme

The package +windows contains an exemplary class hierarchy to manage various types of window functions.

Image Formation

The script example.m shows the workflow to reproduce the results in [1].

📓 References

1. M. F. Schiffner, "Rhombic grids reduce the number of voxels in fast pulse-echo ultrasound imaging," 2022 IEEE Int. Ultrasonics Symp. (IUS), Venice, Italy, Oct. 2022, pp. 1–4.